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Iron Ore

The document discusses testing a MoistScan® microwave moisture analyzer on iron ore samples to determine its suitability for online moisture analysis. Laboratory tests were conducted transmitting microwave signals through iron ore samples while varying the volume and moisture content. The results indicate the MoistScan® MA-500HD is suitable for measuring iron ore moisture up to a maximum bed depth of 400mm with an expected precision of 12% at 1 standard deviation.

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54 views1 page

Iron Ore

The document discusses testing a MoistScan® microwave moisture analyzer on iron ore samples to determine its suitability for online moisture analysis. Laboratory tests were conducted transmitting microwave signals through iron ore samples while varying the volume and moisture content. The results indicate the MoistScan® MA-500HD is suitable for measuring iron ore moisture up to a maximum bed depth of 400mm with an expected precision of 12% at 1 standard deviation.

Uploaded by

DATASCOPE DET
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Iron Ore  Material Sample Data Sheet
 

Introduction 
MoistScan® works by transmitting a microwave 
signal of known power through the material being 
measured.  As the signal passes through the 
material it loses power.  This loss of power is 
predominantly due to the presence of moisture and 
the amount of material.  To a lesser extent it is also 
due to the chemical composition and physical 
characteristics of the material. 
 

Test Methodology 
Samples of material are assessed in a static laboratory environment to indicate the suitability of the 
MoistScan® microwave technique for online moisture analysis.  Tests involve transmitting a 
microwave signal through the material whilst making step‐changes to the volume of material and 
amount of moisture in the material.  This is conducted at varying microwave frequencies.  By 
measuring the loss of power of the microwave signal the ideal frequency (hence model of analyser) 
and maximum bed depth limitation is determined. 
 

Material Description 
Iron Ore are rocks and minerals from which metallic iron can be economically extracted. The Ores 
vary in colour from dark grey, bright yellow, deep purple, to rusty red. 
 

Results 
Tracking Plot for Laboratory vs MoistScan® Moisture
8

7
6
Moisture %

2
1 Laboratory
MoistScan®
0
1 2 3 4 5 6 7 8 9 10 11 12
Sample
 
 

Summary 
The MoistScan® MA‐500HD online microwave moisture analyser appears suitable for measuring the 
moisture in Iron Ore.  The expected precision of the instrument inferred from the above tests is 
12% at 1 Standard Deviation (this includes sampling and laboratory error).  The analyser appears 
suitable up to a maximum bed depth of 400mm. 
 
 

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